Electric-arc lamp.



No. 698,575. Patented Apr. 29, I902.

P. H. F. SPIES.

ELECTRIC ABC LAMP.

(Application filed. June 5, 1901.)

(No Model.) I 3'Sheets-Sheef I.

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Patented Apr. 29, I902.

. 3 Sheets-Sheet 2 P. H. F. SPIES.

ELECTRIC ARC LAMP.

Application filed June 5, 190

(No Model.)

W/TNSSES Patented Apr. 29, i902.

P. H. F. SP IES.

ELECTRIC ARC LAMP.

(Application filed June 5, 1901.")

3 Sheets-Sheet 3 (No Model.)

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UNITED STATES- PATENT OFFICE.

PETER HEINRICH FELIX SPIES, OF MOUNT VERNON, NEW YORK, ASSIGNOR OFONE-HALF TO JACOB NORDEN, OF MOUNT VERNON, NEW YORK.

ELECTRIC- ARC LAMP.

SPECIFICATION forming part of Letters Patent No. 698,575, dated April29, 1902.

Application filed June 5, 1901.

To all whom it may concern.-

Be it known that I, PETER HEINRICH FELIX SPIES, a subject of the Emperorof Germany, and a resident of Mount Vernon, in the county of Westchesterand State of New York, have invented a new .and Improved Arc-Lamp, ofwhich the following is a full, clear, and exact description.

The invention relates to arc-lamps such as shown and described in theLetters Patent of the United States, No. 668,886, granted to me onFebruary 26, 1901.

The object of the invention is to provide certain new and usefulimprovements in arclamps whereby the feeding of the upper carbon isexceedingly sensitive to insure at all times a uniform steady light andto permit convenient adj ustmentaccording to the power of the current,the construction of the arclamp permitting the attendant to convenientlyand quickly open and close the same for removal of the carbon or formaking repairs or the like.

The invention consists of novel features and parts and combinations ofthe same, as will be fully described hereinafter and then pointed out inthe claims.

A practical embodiment of theinvention is represented in theaccompanying drawings, forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a side elevation of the improvement with parts in sectionand parts broken away. Fig. 2 is an enlarged sectional side elevation ofthe improvement. 3 is a sectional side elevation of the globe and lowercarbon in a lowermost position for convenient insertion and removal ofthe carbons. Fig. 4 is a sectional side elevation of the clutch for theupper carbon. Fig. 5 is an inverted plan View of the switch, parts beingin section. Fig. 6 is an inverted plan view of the lower cap, partsbeing shown in section. Fig. 7 is a sectional side elevation of part ofthe improvement, showing the globe lowered. Fig. 8 is a perspective viewof the lining for the solenoid-magnet and Fig. 9 is a sectional sideelevation of the solenoid-rim g and its support, the section being onthe line 9 9 in Fig.

The main supporting-tube A is secured at Serial No. e azlc. (No model.)

its upper end in a socket B, havinga reduced threaded tubular extensionB, on which screws an eye B carrying apulley B for engagement by acable, rope, or like support for carrying the lamp. The main tube A isformed with an integral pocket A for receiving and supporting the magnetO of a solenoid, having its core 0 attached to the outside of a tubeforming a carrier D, which extends loosely in the main tube A with saidcore 0, as is plainly illustrated in Fig. 2. In the carrier D isremovably held a carbon-holder E, similar in construction to the oneshown and described in the Letters Patent of the United States abovereferred to, so that further description of the same is not deemednecessary, it being understood that this carbon holder E carries theupper carbon F and is free to slide in the carrier D. The upper carbon Fis connected bya clutch G with the lower end of the carrier D, saidclutch being similar in construction to the one described in the patentabove referred to, with the exception that the apertured binding-disk G'has a funnel-shaped extension G The carrier D,with the core 0, iscontrolled by the energizing and denergizing of the magnet O and by theaction of a dash-pot I-I, arranged atone side of the pocket A andsupported onabottom flange Aiintegrally formed on said pocket, as isplainly shown in Figs. 1 and 2. The connection between the carrier D,the core O, and the dash-pot H is arranged as follows: An arm I isclamped or otherwise secured to the core 0 or to the carrier D below themagnet O, and the outer end of this arm I is pivotally connected byalinkI with one end of a lever 1 fulcrumed at ornear its middle at I on themain tube A above the pocket A. The other end of the lever I is providedwith a weight I and is pivotally connected with the stem H of a cylinderH forming part of the dash-pot H, and in said 'cylinder H extends astationary piston H having its plunger-rod Hi pivotally connected with abracket H attached to the flange A previously mentioned. Now when themag net 0 is energized the core O moves upward in the main tube A, andin doing so the arm I and the link I impart a swinging motion to thelever I so that the stem II and the cylinder 1-1 are moved downward overthe stationary piston H This downward movement of the cylinder H can beaccelerated by weights H, removably held on the top of the cylinder H onthe stem H. Then the magnet 0 is deenergized, then the weight of thecarrier D, its core 0, holder E, and carbon F overbalance the dash-potl-I, so that the carrier D and the parts thereon move downward, and indoing so cause a swinging of the lever l in an opposite direction by theaction of the arm I and the link I, connected with saidlever 1 Duringthe swinging motion of the lever 1 the cylinder H is drawn upward on thestationary piston H but as the movement of the cylinder on the piston isuniform it is evident that a gradual downward movement of the carrier D,holder E, and upper carbon F takes place to insure a very sensitivefeeding of the carbon. By the use of the weights 1-1 the resistance ofthe dash-pot to the upand-down movement of the carrier can be increasedor diminished to suit existingconditions and to at all times insure asensitive feeding of the carbon and a consequent steady burning of thelamp.

The upper end of the carrier D is provided with a guiding-pin D,engaging the central tubular extension 15 as a bearing, to insure astraight up-and-down sliding movement of the carrier D with a minimum offriction. The tube end A depending from the flange A, is formed at itslower end with a flange A, against the bottom of which rests an asbestoswasher A, engaged by a bearing A for the lower end of the tube B toslide in, said bearing A being fastened by screws A to the flange A", asis plainly shown in Fig. (3, and the said bearing contains a flexiblebinding, preferably of asbestos and set in an annular recess in thebearing to insure proper sliding of the tube 13.

On the flange A are held bushings K, of rubber or other insulatingmaterial and supporting the upper ends of a U-shaped frame K, engaged atits middle by'an eye L on a double socket' L, carrying the lower carbonF and the inner or small globe N. The top of the latter is engaged by aplate K having bushings K of rubber or like insulating material, andheld to slide loosely on the frame K, but pressed on by springs K,coiled on the frame-arms to hold the plate K normally in firm contactwith the upper end of the globe N. The double socket L has a smallsocket and a large socket, of which the small socket L (see Fig. 3)receives the lower carbon F, and said lower carbon F is secured in placeby a set-screwL The large carbon L contains a compressible contact-ringIf for engagement by the lower end of the globe N, so as to securelyhold the latter in position, said contact-ring L being made of aplurality of helices, which are oval in cross-section and interlockedwith one another, as more fully shown and described in the LettersPatent of the United States No. 668,887, granted to me on February 26,switch.

The main globe O for inclosing the carbonglobe N and thecarbon-supporting frame K and double socket L is secured at its topflange by set-screws P, screwing in the depending flange P of a ring Psecured on the lower ends of rods P, telescoping in tubes 1" and havingstopcollars P adapted to be seated on shoulders P, near the lower endsof the tube P", as is plainly shown in Fig. 7. The tubes P are mountedto slide freely in bearings on the flange A and the upper ends of saidtubes are formed with flanges P adapted to be seated on the top surfaceof the flange A as shown in Fig. 7. The ring P is formed with slots Penlarged at one end for the entrance of the heads Q of pins Q, securedto a locking-ring Q supported by or mounted to turn on the heads Q ofscrews or pins Q, secured to and depending from the under side of theflange A (See Fig. 9.) The locking-ring Q has ahandle Q adapted to betaken hold of by the attendant of the lamp to turn the ring Q after thering P has passed, with its slot P the heads Q of the pins Q, so thatthe latter pass into the narrow portions of the slots P and the ring Pthen rests on and is supported by the heads Q, the globe 0 being in anuppermost position. /Vhen it is desired to lower the globe 0 to gainaccess to the globe N and the carbon F, then the attendant turns thering Q in an opposite direction to bring the heads Q in register withthe enlarged ends of the slots P so that the ring P is unlocked and isfree to slide downward, the rods P sliding in the tubes P", and thelatter sliding upward in the flange A until the flanges P rest on thetop of the flange A and the stop-collars P are seated on the seats P(See Fig. 7.) When this takes place, the ring P is below the lower endof the frame K, so that the attendant now has ready access to the globeN and the plate K which when pressed upward against the tension of thesprings K permits of swinging the globe N into a lowermost position, asshown in Fig. 3. The globe N can now be removed, if desired, from itssocket L and a new carbon F can be inserted in the socket L and securedtherein by the setscrew L The new upper carbon may now also be placed inposition in the carbonholder E, after which the several parts arereturned to their normal positionsthat is, the globe N, with the doublesocket, is swung upward on the lower end of the frame K, and then theplate K is engaged with the top of the said globe, after which theoperator pushes the globe O and ring P 'upward to telescope the rods Pin the tubes P and to slide the latter upward in their hearings in theflange A When the ring P moves in an upper- 1901, for an electric mostposition, the enlarged ends of the slots P engage the heads Q of thepins Q, after which the ring Q is turned by the attendant manipulatingthe handle so as to cause the locking-ring Q to lock the ring P in anuppermost position. I The middle and upper portion of the arclamp isinclosed in a casing R, preferably of sheet metal and reduced at itslower end B to closely fit the locking-ring Q at its peripheral surface,as is plainly shown in Fig. 1. A distance above this lower end It isformed an inwardlyextending annular flange R adapted to rest on theflange A so as to separate the heat-developing portion of the lamp fromthe solenoid, dash-pot, and adjacent up per parts of the lamp.Spring-lugs R are secured to the flange R to engage the periphery of theflange A and hold the casing Rin a centered position. In the portion ofthe casing below the flange R are formed ventilating-openings R forallowing the heat rising,

from the burning carbons to escape to the outside of the casing. Theopenings R are formed in an inwardly and upwardly bent portion, so as tobe free from the effects of the wind and to allow a ready escape of heatat all times. Above the flange R are ventilating-openings R in the wallof the casing R, and an annular protecting-flange R is secured to thecasing and extends over said openings to prevent rain or snow fromentering the casing at said opening. Ventilatingopenings R similar totheopeningsR, are arranged near the top of the casing, so that air canfreely circulate in the casing above the flanges R to keep the solenoidand connected parts in proper working condition at all times. Theextreme upper end of the easing R is closed by a cap R having its hub Rengaging the reduced portion B of the socket B,,the eye B screwing downupon the cap to hold said cap securely in place.

On the top of the cap R are secured binding and switch posts S S,extending to the inside of the cap R to be engaged by switching-forks TT, respectively held on a ring T mounted to turn in the socket B, saidring being provided with a handle T extending to the outside betweenthe'cap R and the upper end of the casing B, so that the operator cantake hold of the handle T and turn the same to move the switch-forks T Tin or out of contact with the inner ends of the hind ing-posts S S. Theswitch-forkTis connected by an insulated wire S with a resistance orshock coil S held on the tube A, near the upper end thereof, and thisresistance is connected by an insulated wire S with one arm of the frameK, as is plainly shown in Fig. 1. The other switch-fork T is connectedby an insulated wire S with the magnet O of the solenoid, and saidmagnet is connected by an insulated wire S with the arm I. Now when theswitch is in a closed position, as shown in Figs. 1 and 5, thenelectrical connection is had from the binding-post S by way of theswitch T, wire S resistance S wire S frame K, double socket L to thelower carbon F,

and connection is had from the binding-post S, switch-fork T,solenoid-magnet 0, wire S", clamping-arm I, core 0, carrier D, andholder E to the upper carbon F.

Now when the lamp'is lowered and the operator desired to change thecarbons, as previously explained, then by shifting the handle T andmoving the switch-forks T T out of engagement with the inner ends of thebinding-posts S S the current is positively broken, so that the operatorcan open and close the lamp and remove or insert the carbons without theslightest danger of personal injury by the electric current.

In order to increase the efficiency or pulling power of thesolenoid-magnet C, I provide the same in its central opening with alining C of iron or other suitable metal.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent 1. An arc-lamp provided with a solenoid, acarrier for carrying the carbon and the core of said solenoid, a clutchbetween the carrier 1 and said carbon, an external dash-pot connectedwith said carrier, and removable weights for the dash-pot, forincreasing or decreasing the resistance of the dash-pot to the movementof the solenoid-core, as. set forth.

2. An arc-lamp having a supporting-tube formed with an integral flange,a casing having an inner flange adapted to rest on said tube-flange, toseparate the heat-developing part of the lamp from the actuating devicefor the carbon-feed of the lamp, and lugs on said inner flange forengaging said tubefiange, as set forth.

3. An arc-lamp having a supporting-tube provided with top and bottombearings, and a carrier for the solenoid-core and mounted to slide insaid bearings, the upper end of the carrier being reduced to form a pinengaging the upper bearing, the said lower bearing having a flexiblelining for engaging the outside of the tubular carrier, as set forth.

4. An arc-lamp having a central supporting-tube formed with a pocket forthe solenoidmagnet, a flange integral with the tube for supporting thecasing, and a second integral flange for supporting the lower-carbonholder, as set forth.

5. An arc-lamp having a central supporting-tube formed with a pocket forthe solenoid-magnet, a flange integral with the tube for supporting thecasing, a second integral flange for supporting the lower-carbon holder,and a bearing on the tube for supporting the resistance-coil, as setforth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

PETER HEINRICH FELIX SPIES.

Witnesses:

JOHN J. OREILLY, B. WOODARD.

